CVE-2026-100755
Published:October 13, 2026
Updated:October 13, 2026
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain deployment configurations, could have allowed an authenticated user to poison cached page content served to other users due to improper cache key construction.
Affected Packages
https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.3.0 <v19.3.5Fix Suggestion:
Update to version v19.3.5https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v16.2.0 <v19.2.8Fix Suggestion:
Update to version v19.2.8https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.4.0 <v19.4.2Fix Suggestion:
Update to version v19.4.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.6
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Acceptance of Extraneous Untrusted Data With Trusted Data
EPSS
Base Score:
0.08